Pythagorean projections

If anyone is looking for a software engineer in the southern New Hampshire /
Boston area, please let me know.

Welcome Back! As you can see, this site has returned for another season.
You may notice a few additions. You should notice the link to the expanded
page. There you will find new info that I didn't present in previous years.
I haven't updated the Explanations page to describe those columns yet. I
thought it was time I put up what I had, even though some things aren't yet
finished. See if you can figure out what the columns are. Some should be
easy to figure out.